Single Particle Studies on the Influence of the Environment on the Plasmonic Properties of Single and Assembled Gold Nanoparticles of Various Shapes

Simple item page
dc.contributor.advisorLink, Stephan
dc.contributor.committeeMemberKolomeisky, Anatoly B.
dc.contributor.committeeMemberHafner, Jason H.
dc.creatorSwanglap, Pattanawit
dc.date.accessioned2013-09-16T16:51:53Z
dc.date.accessioned2013-09-16T16:51:58Z
dc.date.available2013-09-16T16:51:53Z
dc.date.available2013-09-16T16:51:58Z
dc.date.created2013-05
dc.date.issued2013-09-16
dc.date.submittedMay 2013
dc.date.updated2013-09-16T16:51:58Z
dc.description.abstractPlasmonic nanoparticles and their assembly have the potential to serve as a platform in practical applications such as photonics, sensing, and nano-medicine. To use plasmonic nanoparticles in these applications, it is important to understand their optical properties and find methods to control their optical response. Using polarization-sensitive dark-field spectroscopy to study self-assembled nanoparticle rings on substrates with different permittivities I show that the interaction between collective plasmon resonances and the substrate can control the spatial scattering image. Using liquid crystals as an active medium that can be controlled with an external electric field I show that the Fano resonance of an asymmetric plasmonic assembly can be actively controlled utilizing the polarization change of scattered light passing through the liquid crystal device. Furthermore, utilizing the strong electromagnetic field enhancement of coupled plasmonic “nanospikes” on the surface of gold nanoshells with a silica core, I show the use of single spiky nanoshells as surface-enhanced Raman spectroscopy substrates. Individual spiky nanoshells give surprisingly reproducible surface-enhanced Raman spectroscopy intensities with a low standard deviation compared to clusters of nanoparticles. In summary, the work presented here provides understanding of the plasmonic response for assembled nanoparticles on different substrates, illustrated a new method to actively control the optical response of plasmonic nanoparticles, and characterizes spiky nanoshells as surface-enhanced Raman scattering platform.
dc.format.mimetypeapplication/pdf
dc.identifier.citationSwanglap, Pattanawit. "Single Particle Studies on the Influence of the Environment on the Plasmonic Properties of Single and Assembled Gold Nanoparticles of Various Shapes." (2013) Diss., Rice University. <a href="https://hdl.handle.net/1911/72045">https://hdl.handle.net/1911/72045</a>.
dc.identifier.slug123456789/ETD-2013-05-476
dc.identifier.urihttps://hdl.handle.net/1911/72045
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectSurface plasmon resonance
dc.subjectSurface-enhanced Raman spectroscopy
dc.subjectGold nanoparticles
dc.subjectSelf-assembled nanoparticles
dc.titleSingle Particle Studies on the Influence of the Environment on the Plasmonic Properties of Single and Assembled Gold Nanoparticles of Various Shapes
dc.typeThesis
dc.type.materialText
thesis.degree.departmentChemistry
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
SWANGLAP-THESIS.pdf
Size:
3.51 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.61 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Rice University Theses and Dissertations